High Efficiency Solar Cell Using Phosphors

Inactive Publication Date: 2012-10-18
KOREA INST OF ENERGY RES
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Benefits of technology

[0041]According to exemplary embodiments of the present invention, the rear section of the solar cell is provided with phosphors, which may absorb light components having wavelengths outside the predetermined wavelength range used by the generator and emit light components converted thereby from the wavelengths outside the predetermined wavelength range to wavelengths capable of bei

Problems solved by technology

For the solar cells, it is an important issue to improve conversion efficiency.
However, such a s

Method used

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  • High Efficiency Solar Cell Using Phosphors
  • High Efficiency Solar Cell Using Phosphors
  • High Efficiency Solar Cell Using Phosphors

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[0045]Exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0046]FIG. 1 is a diagram of a high efficiency solar cell according to one exemplary embodiment of the present invention.

[0047]According to this exemplary embodiment, the solar cell includes a front section 100, a generator 200, and a rear section 300.

[0048]The front section 100 is a part through which sunlight enter the solar cell. The front section 100 is formed with a front electrode 110, which adjoins the generator 200. Further, the front section 100 is formed with a front anti-reflection film 120 which reduces reflection of sunlight while promoting absorption of sunlight when sunlight is incident on the solar cell.

[0049]The generator 200 generates electricity using a light component of sunlight in a certain wavelength range. In this embodiment, a P-N junction silicon solar cell is used. The silicon solar cell employs a light component in the wave...

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Abstract

A high efficiency solar battery using a fluorescent substance to efficiently use incident light and thereby improve conversion efficiency. The solar battery of the present invention comprises: a front part including a front electrode and configured to receive light; a generating part disposed behind the front part to generate electricity from specific wavelengths of light incident through the front part; and a rear part disposed behind the generating part and comprising a rear electrode, wherein a first fluorescent substance is dispersed in the front part so as to absorb light having wavelengths different from the specific wavelengths, convert the absorbed light into light having the specific wavelengths, and output the converted light.

Description

TECHNICAL FIELD[0001]The present invention relates to a high efficiency solar cell, and more particularly to a high efficiency solar cell which employs phosphors to improve use efficiency of light entering the solar cell, thereby improving conversion efficiency.BACKGROUND ART[0002]Generally, a solar cell refers to a generator which absorbs light to generate and transfer electricity to the outside, and has attracted attention as a type of reproducible power generation system which does not use fossil fuel.[0003]Solar cells may be generally classified into semiconductor type solar cells and dye-sensitized solar cells according to a principle of power generation. Semiconductor solar cells refer to photovoltaic cells, which employ photovoltaic power generated in a P-N junction between a P-type semiconductor and an N-type semiconductor. The semiconductor type solar cells may be classified into a silicon solar cell, a compound semiconductor solar cell, and an organic solar cell according ...

Claims

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Application Information

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IPC IPC(8): H01L31/0232H01L31/18
CPCC09K11/02H01L31/028H01L31/055H01L31/056Y02E10/52Y02E10/547H01L31/068C09K11/7787H01L31/04
Inventor HAN, SANG-DO
Owner KOREA INST OF ENERGY RES
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